Full-Stack Developer (SNS02129)

The Hague, Netherlands
June 30, 2025
Freelance Full Time
Urgent
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Job Description

We are looking for a highly skilled Full-Stack Developer with strong experience in JavaScript/TypeScript, frontend frameworks like React or Vue, and backend technologies such as Node.js and Firebase.

  • This role requires working on AI-powered communication flows, integrating LLMs, building internal dashboards, and working with blockchain APIs.
Key Responsibilities
  • Rapidly prototype and iterate on user-facing features and backend infrastructure.
  • Build and manage custom integrations with Slack and WhatsApp using APIs.
  • Integrate LLMs (OpenAI, Claude, Mistral, etc.) into user workflows for automation and dynamic data retrieval.
  • Manage authentication, access control, analytics, and testing frameworks.
Skills
  • JavaScript/TypeScript
  • React.js
  • Node.js + Express
  • API integration
  • GitHub Copilot
  • PostgreSQL
  • blockchain APIs
  • Git
  • analytics tools
  • A/B testing platforms
Languages
  • French
  • English                                              

Hiring Team Member

Sai Prashanth
Recruitment Coordinator